In the competitive rubber manufacturing industry, efficiency is everything. Premature vulcanization—commonly known as “scorching”—is a costly disruption that ruins raw materials and halts production lines.
At Qingdao Chengda Huili New Materials Co., Ltd., we understand that consistency is key to your success. That is why we specialize in supplying high-purity Anti-scorching Agent PVI (CTP), the industry standard for controlling cure safety without compromising the final properties of your rubber products.
What is Anti-scorching Agent PVI (CTP)?
N-(cyclohexylthio)phthalimide, widely known as PVI or CTP, is a highly effective pre-vulcanization inhibitor. It is designed to control the scorching time of sulfur-cured rubber compounds.
Unlike other retarders that may affect the cure rate or the physical properties of the vulcanizate, PVI (CTP) provides a “linear” response. This means you can precisely adjust the scorch safety of your compound by simply varying the dosage, without significantly altering the final cure time.
Key Benefits of Using PVI (CTP) in Rubber Compounding
Adding our PVI (CTP) to your production line offers immediate technical and economic advantages:
- Prevents Scorching During Storage: It stabilizes rubber compounds during storage, extending their shelf life even in warmer climates.
- Increases Processing Safety: It allows for higher processing temperatures during mixing, calendering, and extrusion, which speeds up production throughput.
- Reduces Waste: By preventing premature curing, you significantly reduce scrap material and the need to rework compounds.
- Recovers “Marginal” Stock: It can be used to recover slightly scorched stock, saving valuable raw materials from being discarded.
Common Applications
Our Anti-scorching Agent PVI is compatible with both Natural Rubber (NR) and Synthetic Rubbers (SBR, BR, NBR, EPDM, etc.). It is essential for manufacturers producing:
- Automotive Tires: Ensuring consistency in tread and carcass compounds.
- Industrial Hoses & Belts: Preventing scorch in complex extrusion profiles.
- Rubber Footwear: Maintaining flow properties for intricate molds.
- Technical Rubber Goods: Allowing for single-stage mixing processes.
Why Choose Qingdao Chengda Huili New Materials Co., Ltd.?
As a dedicated partner in the rubber chemical industry, Qingdao Chengda Huili New Materials Co., Ltd. is committed to quality and reliability.
- High Purity Standards: We ensure our CTP meets rigorous specifications for melting point and ash content, ensuring no impurities interfere with your curing system.
- Stable Supply Chain: We maintain consistent stock levels to ensure your production lines never stop waiting for raw materials.
- Technical Support: Our team understands rubber formulation and can assist you in determining the optimal dosage for your specific compounds.
Optimization Your Production Today
Don’t let rubber scorching impact your bottom line. Switch to a reliable pre-vulcanization inhibitor that puts you in control of your cure kinetics.
Contact us today to request a technical data sheet (TDS), a free sample, or a competitive quote.